JPH10282960A - Display device and input device for pitch bend data - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display and input pitch bend data by a value which is easy to understand in terms of music such as a cent value or the number of semitones by converting the value of inputted pitch bend data to a value expressing a pitch variation such as a cent value or the number of semitones based on a set pitch bend range. SOLUTION: A switch detection circuit 2F is provided corresponding to each operator group on a panel switch 2E with ten keys, a character board and other various kinds of switches. A pitch bend range setting operator sets the pitch bend range by assigning a pitch variation with respect to the maximum value of pitch bend data. The pitch variation inputting operator inputs pitch bend data by the cent value. A pitch bend range inputting operator inputs pitch bend data as the value without changing. A display circuit 2H displays pitch bend data as it is, displays as a cent value and displays both of them on a display 2G in parallel.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pitch bend data display device and an input device capable of displaying pitch bend data used in an electronic musical instrument or the like in an easy-to-understand manner for an operator and easily inputting a value thereof.

[0002]

2. Description of the Related Art Conventionally, in a sequencer such as an automatic performance device which automatically generates a musical tone, pitch bend data is converted to a numerical value based on 14-bit data, for example, "-81".
Using the values from "92" to "8191", the values are displayed as they are or are input using the values.

[0003]

However, even if the value of the pitch bend data is directly displayed or the value is directly inputted, it is difficult to understand how much the actual pitch change will be. That is, when the maximum value or the minimum value of the pitch bend is applied to the actual pitch change, the value is different depending on the pitch bend range set on the sound source side. Therefore, even if the value of the pitch bend data is the same, the rate of the pitch change is different,
There is no other way but to calculate the pitch change manually by the user himself based on the setting on the sound source side, which is inconvenient. The present invention has been made in view of the above points, and displays pitch bend data with musically intelligible values such as a cent value and the number of semitones, and a pitch bend data display device capable of inputting and It is intended to provide an input device.

[0004]

According to a first aspect of the present invention, there is provided a pitch bend data display device, comprising: setting means for setting a pitch bend range; input means for inputting pitch bend data having a value within a specific range; Conversion means for converting a data value into a value representing a pitch change amount such as a cent value or the number of semitones based on a set pitch bend range; and displaying the value converted by the conversion means as a numerical value or graphically. Display means. The maximum value of the pitch bend data is, for example, 819.
In the case of 1, if the maximum value is assigned a cent value of 300, the pitch bend range will be the cent value assigned to the maximum value. The same applies to a case where a value of 3 is assigned as the number of semitones. The conversion means converts the value of the pitch bend data to a value such as a cent value or the number of semitones based on the pitch bend range. Therefore, if the value of the pitch bend data is 5461, the cent value is 200. The display means directly displays the value converted by the conversion means as a cent value or the number of semitones as a numerical value, or performs graphic display such as a curve. A pitch bend data input device according to a second aspect of the present invention includes: a setting unit for setting a pitch bend range; an input unit for inputting a value representing a pitch change amount such as a cent value or the number of semitones using a numerical value or a graphical interface; And a converting means for converting the value representing the pitch change amount into a pitch bend data value taking a value in a specific range based on the set pitch bend range. The input means inputs the amount of change in pitch using a cent value or the number of semitones,
The pitch change amount can be input using a graphical interface or the like for inputting by operating a graphic such as a curve. The conversion means converts the pitch change amount input by the input means into a pitch bend data value based on the pitch bend range. The tone generator performs pitch bend processing based on the converted pitch bend data value.

[0005]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 2 is a block diagram showing an overall configuration of an automatic performance device provided with a pitch bend data display device and an input device according to the present invention. CPU
Reference numeral 21 controls the overall operation based on various programs and various data in the ROM 22 and the RAM 23, and musical tone control information (MIDI data) fetched from an external storage device. In this embodiment, a floppy disk drive 24, a hard disk drive 25, a CD-ROM drive 26, etc. will be described as examples of the external storage device. A device for using the media may be used. Further, various information such as tone control information may be fetched from a server computer 29 or the like on the communication network 28 via the communication interface 27, or other MIDI information may be fetched via the MIDI interface 2A.
MIDI data or the like may be fetched from the DI device 2B or the like. The CPU 21 supplies the tone generator circuit 2J with the MIDI data fetched from the external storage device or the MIDI data generated based on the key pressing operation of the keyboard 2C. Note that the tone generation process may be performed using a sound source circuit connected to the outside. The ROM 22 stores various programs (such as a system program and an operation program) of the CPU 21 and various data, and is configured by a read-only memory (ROM). RAM 23
The CPU 21 temporarily stores various data (such as automatic performance data) generated when the CPU 21 executes a program. A predetermined address area of a random access memory (RAM) is allocated to each of the data, and a buffer, a flag,
Used as a table or the like. Further, the operation program may be stored in an external storage device such as the hard disk device 25. The operation programs are stored in an external storage device such as a hard disk device 25 without storing the operation programs in the ROM 22, and are read into the RAM 23 so that the ROM 2
2 performs the same operation as when the operation program is stored in CP.
U21 may be performed. By doing so, an operation program can be easily added or upgraded. CD as one of the removable external storage media
-A ROM or a floppy disk may be used. The CD-ROM or the floppy disk may store various data such as the above-described automatic performance data, chord progression data, musical sound waveform data, video data, and an arbitrary operation program. The operation programs and various data stored on the CD-ROM or floppy disk are
The data can be read out by the CD-ROM drive 26 or the floppy disk drive 24 and transferred to the hard disk drive 25 for storage. This makes it possible to easily perform new installation and version upgrade of the operation program.

The communication interface 27 is connected to a data and address bus 2M, and various communication networks 2 such as a LAN (local area network) and the Internet are connected via the communication interface 27.
8 may be connected, and data may be exchanged with another server computer 29. Thus, when the operation program and various data are not stored in the hard disk device 25, the operation program and various data can be downloaded from the server computer 29. In this case, a command for requesting downloading of an operation program and various data is transmitted from the automatic performance device, which is a musical sound generation device serving as a client, to the server computer 29 via the communication interface 27 and the communication network 28. The server computer 29 transmits predetermined operation programs and data to the automatic performance device via the communication network 28 in response to the command. The automatic performance device receives these operation programs and data via the communication interface 27 and stores these programs and data in the hard disk device 25. Thus, the download of the operation program and various data is completed.

The automatic performance data is stored in a ROM 22, hard disk, CD-ROM, floppy disk, or the like. When stored in a hard disk, CD-ROM, floppy disk, or the like, the automatic performance data is read into the RAM 23, and then the automatic performance reproduction process is performed. The format of the automatic performance data is an event in which the occurrence time of a performance event is represented by the time from the immediately preceding event-a relative time method, and an event in which the performance time of the performance event is represented by an absolute time in a song or bar-an absolute time method,
Note (rest) expressed by pitch and note length or rest and rest length of note-note length method, memory area is reserved for each minimum resolution of performance, and memory corresponding to the time when performance event occurs Any format such as a solid system in which performance events are stored in an area may be used. In addition, the method of changing the tempo of the automatic performance includes a method of changing the period of the tempo clock, a method of modifying the value of the timing data while keeping the period of the tempo clock, and a method of counting the timing data in one process. Anything, such as a change, may be used. The automatic performance data may be in a format in which data of a plurality of channels are mixed, or in a format in which data of each channel is divided for each track.

The keyboard 2C is provided with a plurality of keys for selecting the pitch of a musical tone to be produced, has key switches corresponding to each key, and is provided with a pressing force detecting device or the like as necessary. It has touch detection means. The keyboard 2C is a basic operator for music performance, and it goes without saying that other keyboard operators may be used. The key press detection circuit 2D includes a key switch circuit provided corresponding to each key of the keyboard 2C for designating the pitch of a musical tone to be generated. The key press detection circuit 2D detects a change in the key 2C from the key release state to the key press state, and outputs a key-on event.
A key-off event is output by detecting a change from a key-depressed state to a key-released state, and a note number indicating a key pitch of each key-on event and key-off event is output. In addition, the key press detection circuit 2D discriminates a key press operation speed, a key press force, and the like when a key is pressed, and outputs velocity data and after touch data. The switch detection circuit 2F is provided corresponding to each operator group on the panel switch 2E provided with a numeric keypad, a character keyboard, and other various switches, and a switch-on event corresponding to an operation state of each operator group. Is output. As the operator group, for example, a pitch bend range setting operator, a pitch change amount input operator, a pitch bend data input operator, and the like are provided. In addition, it has various controls for selecting, setting, and controlling the tone color, volume, pitch, effect, and the like of the musical tone to be generated. There are many other operators, but they are omitted here. The pitch bend range setting operator sets a pitch bend range by assigning a pitch change amount to a maximum value (for example, 8191) of pitch bend data as a cent value. The pitch change amount input operator inputs pitch bend data in cent values. The pitch bend data input operator inputs pitch bend data as it is. The display circuit 2H controls the display content of the display 2G, and displays pitch bend data as it is, displays this pitch bend data as a cent value, or displays both in parallel on the display 2G. The display contents are as shown in FIG. 1 and FIG.

The tone generator 2J can simultaneously generate tone signals on a plurality of channels, and inputs tone control information (MIDI data such as note-on, note-off, velocity, pitch, tone number, etc.) given from the CPU 21. And
A tone signal is generated based on these data. In the tone generator circuit 2J, a tone signal can be simultaneously generated on a plurality of channels by using one circuit in a time-division manner to form a plurality of tone channels, or one tone channel is constituted by one circuit. It may be of the type as described below. Also, any tone signal generation method in the tone generator circuit 2J may be used. For example, a memory reading method (waveform memory method) for sequentially reading out tone waveform sample value data stored in a waveform memory in accordance with address data that changes in accordance with a pitch of a musical tone to be generated, or a phase angle parameter An FM method for executing a predetermined frequency modulation operation as data to obtain tone waveform sample value data, or an AM method for executing a predetermined amplitude modulation operation using the address data as phase angle parameter data to obtain tone waveform sample value data, or the like. May be appropriately adopted. In addition to these methods, a physical model method that synthesizes a musical sound waveform by an algorithm that simulates the sounding principle of a natural musical instrument, a harmonic synthesis method that synthesizes a musical sound waveform by adding a plurality of harmonics to a fundamental wave, A formant synthesis method of synthesizing a musical tone waveform using a formant waveform having a specific spectral distribution, an analog synthesizer method using VCO, VCF, and VCA may be employed. In addition, the tone generator circuit is not limited to the one that uses the dedicated hardware, and the tone generator circuit may be configured using a DSP and a microprogram. Alternatively, the tone generator circuit may be configured using a CPU and a software program. It may be. The timer 2N generates a tempo clock pulse for counting a time interval and setting a tempo of automatic accompaniment. The frequency of this tempo clock pulse is adjusted by a tempo switch (not shown) among the various switches 2E. The tempo clock pulse from the timer is given to CPU 21 as an interrupt instruction,
The CPU 21 executes various processes at the time of automatic performance by interrupt processing. Effect circuit 2K is sound source circuit 2J
And various effects are applied to the tone signal from the sound source, and the tone signal with the effect is output to the sound system 2L. The tone signal to which the effect is given by the effect circuit 2K is generated through a sound system 2L including an amplifier and a speaker.

Next, an example of the operation of the automatic performance device provided with the pitch bend data display device and the input device of the present invention will be described. FIG. 4 is a diagram illustrating an example of a pitch bend range setting process performed in response to an operation of the pitch bend range setting operator. This pitch bend range setting process is performed when a pitch bend range setting operator is operated. That is, the numerical value input by operating the numeric keypad or the like after the operation of the pitch bend range setting operator is set as the pitch change amount relative to the maximum value of the pitch bend data, that is, the pitch bend range. At this time, the operator inputs a pitch change amount represented by a cent value. For example, if the maximum value of the pitch bend data is specified as a cent value of “300” or “200”, the specified cent value is stored in the pitch bend range register RANGE as the maximum pitch change amount. .

FIG. 5A is a diagram showing an example of a process performed in response to the operation of the pitch change amount input operator. In this pitch change amount input processing, the pitch change amount (for example, cent value) input by the pitch change amount input operator is converted into pitch bend data based on the value stored in the pitch bend range register RANGE, and is converted. The pitch bend data is written in the memory, and the input pitch change amount (cent value) and the value of the converted pitch bend data are displayed. FIG. 5B is a diagram illustrating an example of a process performed in response to the operation of the pitch bend data input operator. This pitch bend data input process converts the pitch bend data input by the pitch bend data input operator into a pitch change amount (cent value), writes it into a memory, and inputs the input pitch bend data value and pitch change amount (cent value). Cents).

FIG. 6 is a diagram showing a display example of a conventional pitch bend data display device. As is apparent from the figure, conventionally, the state of the pitch change is simply displayed graphically as a change curve of the pitch bend data, so that it is not clear how much the pitch change amount is. FIG. 1 is a diagram showing an example of a display screen according to the pitch bend data display device of the present invention. In this case, the maximum value 8191 of the pitch bend data corresponds to 300 cents. In the pitch bend data change curve shown in FIG. 6, the first peak value for which it was not clear how much the pitch change was,
According to FIG. 1, it can be easily understood that the change is 200 cents (whole sound). FIG. 3 shows pitch bend data and pitch change (cent value) corresponding to the graphic display of FIG.
FIG. 4 is a diagram showing an example of an input display screen of FIG. Pitch bend range (PB_range) data is stored in the second line of the input screen, and it is defined that the maximum pitch change by subsequent pitch bend data is 300 cents.
In the row where the parameter is “pitch bend”, when the value of the pitch bend data is inputted to the item of data 1 on the input screen, the pitch bend data is inputted to the item of data 2 by the pitch bend data input processing of FIG. A cent value corresponding to the amount of change is displayed. When a cent value is input as the pitch change amount in the item of data 2,
The pitch bend value is displayed at the item of the data 1 by the pitch change amount input processing of FIG.

FIG. 7 shows the sequence data (during the performance).
FIG. 9 is a diagram showing a comparison between a display example of the conventional pitch bend data display device and a display example of the pitch bend data display device of the present invention when the data for specifying the pitch bend range is included in the data. FIG. 7A shows a conventional display example, and FIG. 7B shows a display example of the present invention. Here, the data for specifying the pitch bend range corresponds to “pitch bend sensitivity (range)”, “GM reset” in which the initial value of the pitch bend range is determined, and the like. For example, as shown in the figure, two pitch bend data curves in which the pitch bend data changes in the same manner are stored in the sequence data, and the pitch bend range is set to 2 as data for specifying the pitch bend range.
In the case where the one at 00 cent and the one at 1200 cent occur in order, the two curves as shown are displayed as the same in the conventional one, even though the pitch bend range is changed. On the other hand, according to the pitch bend data display device of the present invention, FIG.
Curves indicating the amount of change in pitch as shown in (B) are displayed such that the magnitude relationship is clear according to the pitch bend range. In this case, the operator can easily recognize how much pitch bend is applied.

The present invention is not limited to the keyboard instruments as in the above-described embodiments, but may be a stringed instrument type, a wind instrument type, a percussion instrument type, or the like. Further, the apparatus may not have such a performance operation element. Further, the present invention is not limited to an electronic musical instrument having a built-in sound source device, automatic performance device, and the like, but may be separate devices and connected to each other using communication means such as MIDI or various networks. In the above-described embodiment, the configuration is an automatic performance device having a built-in tone generator circuit, and the tone generator circuit is controlled by using a pitch bend range setting operator or by data specifying a pitch bend range included in sequence data. Although the example of setting the pitch bend range has been described, when the sound source device is a separate device from the device of the present invention and is connected via communication means such as MIDI, the device of the present invention is Regardless, the pitch bend range may be set independently on the tone generator side. In such a case, the device of the present invention transmits a pitch bend range data request command to the sound source device, and the sound source device receiving the command sends back pitch bend range data to the device of the present invention,
When the device of the present invention receives the pitch bend range data, the device of the present invention converts the pitch bend data into a pitch change amount and displays it, or converts the pitch change amount into pitch bend data by inputting the pitch change amount. Can be.

[0015]

According to the present invention, there is an effect that pitch bend data can be displayed or input with a musically understandable value such as a cent value or the number of semitones.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a display screen according to a pitch bend data display device of the present invention.

FIG. 2 is a block diagram showing an overall configuration of an automatic performance device provided with a pitch bend data display and input device according to the present invention.

FIG. 3 is a diagram showing an example of an input display screen for pitch bend data and a pitch change (cent value) corresponding to the graphic display of FIG. 1;

FIG. 4 is a diagram illustrating an example of a process performed in response to an operation of a pitch bend range setting operator.

FIG. 5A is a diagram illustrating an example of a process performed in response to an operation of a pitch change amount input operator, and FIG. 5B is a diagram illustrating a process performed in response to an operation of a pitch bend data input operator; It is a figure showing an example of.

FIG. 6 is a diagram showing a display example of a conventional pitch bend data display device.

FIG. 7 shows a comparison between a display example of a conventional pitch bend data display device and a display example of a pitch bend data display device of the present invention when data specifying a pitch bend range is included in sequence data (during playing). FIG.

[Explanation of symbols]

21 CPU, 22 ROM, 23 RAM, 24 floppy disk drive, 25 hard disk drive, 26 CD-ROM drive, 27 communication interface, 28 communication network, 29 server computer, 2A MIDI interface, 2B ...
Other MIDI devices, 2C: keyboard, 2D: key press detection circuit,
2E: panel switch, 2F: switch detection circuit, 2G
... Display, 2H ... Display circuit, 2J ... Sound source circuit, 2
K: effect circuit, 2L: sound system, 2M: data and address bus, 2N: timer

Claims (2)

[Claims] 1. A setting means for setting a pitch bend range; an input means for inputting pitch bend data having a value within a specific range; and a cent value or a value based on the set pitch bend range. A pitch bend data display device comprising: a conversion unit that converts a pitch change amount such as the number of semitones into a value; and a display unit that numerically or graphically displays the value converted by the conversion unit. 2. A setting means for setting a pitch bend range; an input means for inputting a value representing a pitch change amount such as a cent value or a semitone number using a numerical value or a graphical interface; Conversion means for converting a value to be represented into a pitch bend data value taking a value in a specific range based on a set pitch bend range.